Lock mechanism.



G. E. GLEAVBR.

LOOK MECHANISM.

APPLICATION FILED 313.25, 1914.

1,122,862, Patented Dec. 29, 1914.

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15 NORRIS PETERS CD. PHOTO LITH GEORGE E. CLEAVEPU, OF READING,PENllS'YLi/"ANIA,

COMPANY,

ASSIGNUR I0 PENN HARDWARE A CORPURATION 033 PENNSYLVANIA.

LOCK IVEECHAITISIJI.

icense.

Original application filed March 24, 1913, Serial No. 758,36 25, 1914.Serial No.

To all whom it may concern:

Be it known that I, GEORGE E. CLnAvnR, a citizen of the United States,and resident of Reading, county of Berks, and State of Pennsylvania,have invented an Improvement in Loch Mechanism, of which the followingis a specification.

My invention relates to improvements in looks, and the presentapplication is filed as a division of application Serial No. 756,366,

filed March 21th, 1913. l

The invention has for an object to provide an elfective means forholding the key cylinder, or the turn-knob cylinder, or both, againstrotation when once adjusted in the case, and which cannot becomedetached or disconnected from their cooperating adjuncts.

My improvement will 'be described with reference to the accompanyingdrawings, which illustrate my invention in its preferred form, while thefeatures of construction and combination of parts adapted for carryingout the invention in an effective manner will be fully set forthhereinafter, and more particularly defined in the claims.

Referring to the drawings: Figure 1 represents a side elevation of thelock proper with a portion of the case and the turn knob cylinderremoved to more adequately illustrate the invention; and Fig. 2represents a transverse section of my improved mechanism taken on linea2-ac of Fig. 1.

Similar numerals of reference indicate corresponding parts.

1 designates the boX portion case which, as generally arranged, issecured to the front plate 2 and is provided with a removable coverplate 3 by which access is had to the mechanism contained within thecase, and by which said mechanism is protected when the lock is in use.

4 designates the key cylinder, which may be of any suitableconstruction, adapted for threaded engagement with the side or coverplate 3 and provided as usual with the operating cam 5 at its inner end,by means of which certain parts, comprising the dead bolt and latch boltof the lock, are operated. Juxtaposed and in alinement with respect tothe key cylinder and threaded into the opposite side plate of the case 1is the unit turn knob cylinder 6 provided with a cam 7 for cooperationwith similar parts of the operatof the lock Specification of LettersPatent.

against rotation, the

Patented Dec. 29, 19M.

Divided and this application filed February ing mechanism actuated bythe key cylinder. It will be noted that as both the cylinders i and 6have threaded engagement with their supporting parts ofthe case,provision is made for adjusting the cylinders in proper relation to theelements respectively controlled thereby, and in the case of the keycylinder to the thickness of the floor.

As both the key cylinder 4 and turn hub cylinder 6 are required to beheld against rotation after they have once been properly adjusted, Iprovide .in the present instance set screws 8 of substantial length forthis purpose, each of which is adapted to engage one of the cylindersand lock the same against movement. Furthermore it will be noted thatthese screws are so constructed and arranged with respect to the case inwhich they are mounted as to prevent their becoming disengagedaccidentally, or otherwise, or removed from the case and lost. In theconstruction shown, the set screws 8 are screwed through threadedportions 9 on the respective parts 1. and 3, and are provided withpointed ends to engage suitable V- shaped notches 10 in the respectivecylinders.

11 designates a collar with which each of the screws 8 is provided andwhich are located respectively adjacent the slotted ends 12 of thescrews, but at a suitable distance therefrom to provide sulficientclearance for the proper movement of the screws for locking or unlockingengagement with the cylinders. Furthermore, the respective collers 11are interposed between the shoulders 13 and 14-, the former forming apart of the casing while the latter are formed upon the front plate 2,though it will be noted there is sufiicient clearance at each side ofthe respective collars to permit of the desired movement of the screwsin their adjustment. The ends 12 of the screws 8 extend into holes orapertures 15 in the front plate 2 so that a. suitable implement may beinserted to rotate them into or out of engagement with the respectivecylinders. Thus, while either or both screws may be operated forreleasing the cylinders, or for locking them longitudinal movement ofthe screws is limited by the engagement of the collars 11 with one orthe other of the abutments 13 and 14-, and therefore it is not possible,in assembled condition of the ing, lock or control.

inder and the turn-knob cylinder of a lock, [wherein in assembledcondition of theparts the aforesaidset screws are positively conta nedin non-removable association with the casing and may, while beingadapted to be actuated from the exterior of the casrelease the cylinderwhich they It will now be apparent that I have devised a novel anduseful construction which embodies the features of advantageenumeratedas desirablein the statement of the inyention and the above description,and I have in the present instance shown and described the preferredembodiment thereof which has been found in practice to give satisfactoryand reliable results.

Having thus described my invention, what I claim and desire to secure byLetters Patent is z- 1. In a look, a case having a screw threaded holeparallel to and in its side, an end plate for said-case and having aguide hole in alinement with the screw threaded hole, combined with acylindrical part containing means for operating the lock mechanismsecured through the side of the case in aline- (topics of this patentmay be obtained for respectively eng'age In testimony of ment withthehole in the case and the guide hole in the end plate, a long setscrew extending through said holes for holding the cylindrical part fromrotation, a" collar carried by said set screw adjacent said end plate,an abutment formed on said end plate and terminating adjacent saidcollar to limit a the movement of said screw in the direction of saidend plate, and an abutment on said case on the opposite side of saidcollar-from said endplate and located in the path of movement of saidcollar to limit the movement of said set screw in a direction awayfrom's'aid end platewhereby said setscrew may be moved to operativelyengage said cylindi icalpart, but is prevented from disengagement fromeither said screw threaded hole' or said guide'hole. v

2. In a lock, a case having a removable endp1ate,'comb1ned withturn-knob and keycylinders:respectively screwed into the oppositesides'of the 'case, "and two long set screws screwed into the sidesofthe case to the cylinders to hold them againstturning, said setscrewshaving their ends in alinement in the end plate and having collarsarranged between the end plate and sides of the case with freedonr oflongitudinal movement,

whereby said set screws have only a limited movement through the endplate and are held against accidental disengagement.

' which invention, I herehand.

untoset my I a GEORGE E. CLEAVERQ Witnesses SARA G. RI-IOADS, AYNA E.RI-IOADS.

five cents each, by addressing the f Commissioner of Patents.

Washington, DJC. v 4 y with the holes

